3 Sachets pH Meter Calibration Buffer Powder

• Each sachet contains powder to prepare 250 mL of pH calibration solution. • Mix one sachet with 250 mL of distilled water and stir until fully dissolved. • Use glass or ceramic containers for mixing; avoid metal. • Prepared solutions are accurate to within ±0.01 pH at 25°C. • Store prepared solutions in covered, hermetically sealed containers. • Use prepared solutions within 2 to 3 weeks for optimal accuracy. • Suitable for calibrating pH meters for accurate measurements.